From a subjective standpoint, nothing is an upgrade if it doesn't work for any particular individual. I too hope any bugs that supposedly exist do get worked out. That will happen. Lot's of times manufacturers make minor changes and call them upgrades. However, in the case of the P365, denying that it would be an upgrade to all other single stack pistols in this size category, is, in my opinion, simply turning a blind eye to the obvious. It weighs less, is shorter and thinner and even holds more rounds. Any objective analysis should deem that to clearly be an upgrade. I am a Shield lover and own 4. If it fits me as well and shoots as well for me, it is an upgrade to which I look forward. If it doesn't fit me, then it won't replace my Shields.